A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6620-01-437-0387
NSN 5945-00-253-0147
NSN 5998-01-342-2842
NSN 5996-01-277-6715
NSN 6650-01-586-9997
NSN 6150-00-244-1964
NSN 5835-01-222-2437
NSN 5855-01-147-6024
NSN 5915-00-132-4380
NSN 5930-01-333-2197
NSN 5895-01-415-4739
NSN 5998-01-164-5757